| Diffraction of plane P waves by a canyon of arbitrary shape in poroelastic half-space (Ⅰ): Formulation |
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| 基金项目： | support from the Program for New Century Excellent Talents in University (NCET-05-0248);;the Key Program for Applied Basic Research of Tianjin Municipality (07JCZDJC10100) |
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| 摘 要： | This paper presents an indirect boundary integration equation method for diffraction of plane P waves by a two-dimensional canyon of arbitrary shape in poroelastic half-space. The Green’s functions of compressional and shear wave sources in poroelastic half-space are derived based on Biot’s theory. The scattered waves are constructed using the fictitious wave sources close to the boundary of the canyon, and magnitude of the fictitious wave sources are determined by the boundary conditions. The precision of ...
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| 关 键 词： | poroelastic half-space canyon diffraction plane P wave compressional wave source shear wave source Green’s function |
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